ALQ-Emirates Shipping Line-own box prefix ESPU

APL-American President Line-own box prefix APLU, APLS (the box number prefix in individual cases ends with S)

CKL-Tianjing Shipping-own container prefix CKLU

CMA-CMA CGM-own container prefix ECMU, CMAU, CNCU (acquisition of Zhengli Shipping), ANLU (Acquisition of Qantas)

HAPAG-Hapag-Lloyd-own box prefixes HLXU, HLCU (in some cases, the old box coding rules do not comply with international standards and an error will be reported)

HYUNDAI -Hyundai Merchant Marine - Own container prefixes HDMU, HAMU

KLINE - Kawasaki Steamship - Own container prefixes KKLU, KKTU

KMTC - Koryo Shipping - Own container prefixes KMTU

MAERSK-Maersk Line-own container prefixes MSKU, MRKU, PONU, POCU (acquisition of China Railway Shipping Corporation)

MOSK-Mitsui Merchant Line-MOAU

MSC-Mediterranean Shipping-MSCU, MEDU

NS-South Star Shipping-NSSU

NYK-Nippon Yusen Line-NYKU

OOCL-Orient Overseas-OOLU

XYA-Xingya Shipping-HALU

SNL-Sinotrans Lines-SNBU, SNTU

ZM-Zim Lines-ZIMU

CSCL-China Shipping -CCLU, CSLU

HANJIN-Hanjin Shipping-HJCU

SITC-Sinhai Feng-SITU

That’s all, and there are many small shipowners , I won’t list them one by one. I don’t know if it will be helpful to you. I don’t want to be too much of a fan:)